Abstract

A multiblock amphiphilic structure is one of the major motifs found in multipass transmembrane proteins such as ion channels. On the basis of the characteristic protein motif, synthetic multiblock amphiphiles consisting of aromatic cores with oligoethylene glycol chains have been constructed. The synthetic amphiphiles formed supramolecular ion channels in bilayer membranes and showed ligand-gated and mechanoresponsive ion transportation not only in artificial but also in biological membranes. The multiblock structure also allows for the stacking of the aromatic cores in the condensed states. Such self-assembling properties of the multiblock amphiphiles afforded thermoresponsive crystals and liquid crystals showing macroscopic bending motions and hysteretic phase transitions.

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